A machine can be purchased for $225,000 and used for five years, yielding the following net incomes. In projecting net incomes, double-declining depreciation is applied using a five-year life and a zero salvage value.

	Year 1				Year 2				Year 3				Year 4				Year 5
Net income		$	13,000			$	28,000			$	60,000			$	40,000			$	125,000

Compute the machines payback period (ignore taxes). (Round payback period answer to 3 decimal places.)

Computation of Annual Depreciation Expense
Year	Beginning Book Value	Annual Depr. (40% of Book Value)	Accumulated Depreciation at Year-End	Ending Book Value
1
2
3
4
5
Annual Cash Flows
Year	Net income	Depreciation	Net Cash Flow	Cumulative Cash Flow
0	$(225,000)			$(225,000)
1	13,000
2	28,000
3	60,000
4	40,000
5	125,000
Payback period =					years